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Entry version 134 (16 Oct 2019)
Sequence version 1 (01 Feb 1997)
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Protein

Probable D,D-dipeptide-binding periplasmic protein DdpA

Gene

ddpA

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Part of the ABC transporter complex DdpABCDF, which is probably involved in D,D-dipeptide transport.

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processPeptide transport, Protein transport, Transport

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

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BioCyci
EcoCyc:YDDS-MONOMER
ECOL316407:JW5240-MONOMER

Protein family/group databases

Transport Classification Database

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TCDBi
3.A.1.5.38 the atp-binding cassette (abc) superfamily

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Probable D,D-dipeptide-binding periplasmic protein DdpA
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:ddpA
Synonyms:yddS
Ordered Locus Names:b1487, JW5240
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiEscherichia coli (strain K12)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri83333 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000318 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

Escherichia coli strain K12 genome database

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EcoGenei
EG13790 ddpA

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Periplasm

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 25Sequence analysisAdd BLAST25
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000003180526 – 516Probable D,D-dipeptide-binding periplasmic protein DdpAAdd BLAST491

Proteomic databases

Encyclopedia of Proteome Dynamics

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EPDi
P76128

jPOST - Japan Proteome Standard Repository/Database

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jPOSTi
P76128

PaxDb, a database of protein abundance averages across all three domains of life

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PaxDbi
P76128

PRoteomics IDEntifications database

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PRIDEi
P76128

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Induced by RpoS in stationary phase.1 Publication

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

The complex is composed of two ATP-binding proteins (DdpD and DdpF), two transmembrane proteins (DdpB and DdpC) and a solute-binding protein (DdpA).

Curated

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
4261978, 368 interactors

Database of interacting proteins

More...
DIPi
DIP-11672N

Protein interaction database and analysis system

More...
IntActi
P76128, 2 interactors

STRING: functional protein association networks

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STRINGi
511145.b1487

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
P76128

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105DEF Bacteria
COG0747 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000200399

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
P76128

KEGG Orthology (KO)

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KOi
K02035

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P76128

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR030678 Peptide/Ni-bd
IPR039424 SBP_5
IPR023765 SBP_5_CS
IPR000914 SBP_5_dom

The PANTHER Classification System

More...
PANTHERi
PTHR30290 PTHR30290, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00496 SBP_bac_5, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF002741 MppA, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS01040 SBP_BACTERIAL_5, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P76128-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKRSISFRPT LLALVLATNF PVAHAAVPKD MLVIGKAADP QTLDPAVTID
60 70 80 90 100
NNDWTVTYPS YQRLVQYKTD GDKGSTDVEG DLASSWKASD DQKEWTFTLK
110 120 130 140 150
DNAKFADGTP VTAEAVKLSF ERLLKIGQGP AEAFPKDLKI DAPDEHTVKF
160 170 180 190 200
TLSQPFAPFL YTLANDGASI INPAVLKEHA ADDARGFLAQ NTAGSGPFML
210 220 230 240 250
KSWQKGQQLV LVPNPHYPGN KPNFKRVSVK IIGESASRRL QLSRGDIDIA
260 270 280 290 300
DALPVDQLNA LKQENKVNVA EYPSLRVTYL YLNNSKAPLN QADLRRAISW
310 320 330 340 350
STDYQGMVNG ILSGNGKQMR GPIPEGMWGY DATAMQYNHD ETKAKAEWDK
360 370 380 390 400
VTSKPTSLTF LYSDNDPNWE PIALATQSSL NKLGIIVKLE KLANATMRDR
410 420 430 440 450
VGKGDYDIAI GNWSPDFADP YMFMNYWFES DKKGLPGNRS FYENSEVDKL
460 470 480 490 500
LRNALATTDQ TQRTRDYQQA QKIVIDDAAY VYLFQKNYQL AMNKEVKGFV
510
FNPMLEQVFN INTMSK
Length:516
Mass (Da):57,641
Last modified:February 1, 1997 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i86E1C32CC3E06FB9
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

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DDBJi
Links Updated
U00096 Genomic DNA Translation: AAC74560.1
AP009048 Genomic DNA Translation: BAA15142.2

Protein sequence database of the Protein Information Resource

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PIRi
B64902

NCBI Reference Sequences

More...
RefSeqi
NP_416004.1, NC_000913.3
WP_000830550.1, NZ_SSZK01000038.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC74560; AAC74560; b1487
BAA15142; BAA15142; BAA15142

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
946052

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW5240
eco:b1487

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.780

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U00096 Genomic DNA Translation: AAC74560.1
AP009048 Genomic DNA Translation: BAA15142.2
PIRiB64902
RefSeqiNP_416004.1, NC_000913.3
WP_000830550.1, NZ_SSZK01000038.1

3D structure databases

SMRiP76128
ModBaseiSearch...

Protein-protein interaction databases

BioGridi4261978, 368 interactors
DIPiDIP-11672N
IntActiP76128, 2 interactors
STRINGi511145.b1487

Protein family/group databases

TCDBi3.A.1.5.38 the atp-binding cassette (abc) superfamily

Proteomic databases

EPDiP76128
jPOSTiP76128
PaxDbiP76128
PRIDEiP76128

Genome annotation databases

EnsemblBacteriaiAAC74560; AAC74560; b1487
BAA15142; BAA15142; BAA15142
GeneIDi946052
KEGGiecj:JW5240
eco:b1487
PATRICifig|1411691.4.peg.780

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...
EchoBASEi
EB3551
EcoGeneiEG13790 ddpA

Phylogenomic databases

eggNOGiENOG4105DEF Bacteria
COG0747 LUCA
HOGENOMiHOG000200399
InParanoidiP76128
KOiK02035
PhylomeDBiP76128

Enzyme and pathway databases

BioCyciEcoCyc:YDDS-MONOMER
ECOL316407:JW5240-MONOMER

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P76128

Family and domain databases

InterProiView protein in InterPro
IPR030678 Peptide/Ni-bd
IPR039424 SBP_5
IPR023765 SBP_5_CS
IPR000914 SBP_5_dom
PANTHERiPTHR30290 PTHR30290, 1 hit
PfamiView protein in Pfam
PF00496 SBP_bac_5, 1 hit
PIRSFiPIRSF002741 MppA, 1 hit
PROSITEiView protein in PROSITE
PS01040 SBP_BACTERIAL_5, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiDDPA_ECOLI
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P76128
Secondary accession number(s): P76874, P77769
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: February 1, 1997
Last modified: October 16, 2019
This is version 134 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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